When I was in South America all the showers were either cold, or they had an electric heater that attached to the shower head. In that case I did prefer the cold water. I'm sure they were perfectly safe but it seemed like having a hair dryer hovering over a bathtub to me.![]()
not any different than an electric heater in the basement connected to conductive COPPER pipes ( the same thing they make electric wire with) travelling all the way up to your metal showerhead.